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Mashcka [7]
3 years ago
6

Using electron configurations, explain why the halogens readily react with the alkali metals to form salts

Chemistry
1 answer:
Alika [10]3 years ago
4 0
Halogen react with alkali metals because of their valence electrons. Halogens are just one electron short of being a stable wanna be "noble gas" so they "take or borrow" an electron. alkali metals have one too many valence electrons to be a noble gas, so they "give or lend" an electron.

this is why they are so compatible.
EXAMPLE

NaCl= Na+ +Cl-

Sodium(Na) "gives" its extra electron in order to become stable and Chlorine(Cl) "takes" Na extra electron in order to become stable
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The three states of matter differ primarily in terms of shape and volume. Describe solids, liquids and gases in these terms.
schepotkina [342]

Answer:

solids have definite shape and volume. liquid have definite volume but not definite shape. gases do not have definite volume as well as definite shape.

8 0
3 years ago
PLZZZZZZZZZZZZZZZZZZ15. As much as 90 percent of the oxygen in our atmosphere is the result of
vladimir2022 [97]

Answer:

The correct answer is - option D. photosynthesis.

Explanation:

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Many scientists believe that oceanic phytoplankton that releases oxygen by the photosynthesis process makes 80 to 85% of the total oxygen of the atmospheric oxygen.

7 0
3 years ago
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Why does reducing solute particle size increase the speed at which the solute dissolves in water? A. It exposes more of the solu
Umnica [9.8K]

Answer:A

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3 0
3 years ago
Name the compound Cd(MnO4).
LekaFEV [45]
I believe that would be Cadmium Permaganate
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8 0
3 years ago
You heat 3.869 g of a mixture of fe3o4 and feo to form 4.141 g fe2o3. What is the mass of oxygen reacted?
Lostsunrise [7]

The reaction is  

FeO + Fe3O4 + 1/2 O2---> 2Fe2O3

Thus as shown in the balanced equation two moles of Fe2O3 are formed when 0.5 moles of O2 reacted with mixture of FeO and Fe3O4

moles of Fe2O3 = MAss / Molar mass = 4.141 / 159.69 = 0.0259 moles

So moles of O2 needed = 0.5 X 0.0259 = 0.01295

Mass of O2 = moles X molar mass = 0.01295 X 32 = 0.4144 grams

5 0
3 years ago
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